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<h2><a href="local_closure_goog_debug_error_test.js.html">error_test.js</a></h2>

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<a name="line1"></a>// Copyright 2009 The Closure Library Authors. All Rights Reserved.
<a name="line2"></a>//
<a name="line3"></a>// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
<a name="line4"></a>// you may not use this file except in compliance with the License.
<a name="line5"></a>// You may obtain a copy of the License at
<a name="line6"></a>//
<a name="line7"></a>//      http://www.apache.org/licenses/LICENSE-2.0
<a name="line8"></a>//
<a name="line9"></a>// Unless required by applicable law or agreed to in writing, software
<a name="line10"></a>// distributed under the License is distributed on an &quot;AS-IS&quot; BASIS,
<a name="line11"></a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a name="line12"></a>// See the License for the specific language governing permissions and
<a name="line13"></a>// limitations under the License.
<a name="line14"></a>
<a name="line15"></a>goog.provide(&#39;goog.debug.ErrorTest&#39;);
<a name="line16"></a>goog.setTestOnly(&#39;goog.debug.ErrorTest&#39;);
<a name="line17"></a>
<a name="line18"></a>goog.require(&#39;goog.debug.Error&#39;);
<a name="line19"></a>goog.require(&#39;goog.testing.ExpectedFailures&#39;);
<a name="line20"></a>goog.require(&#39;goog.testing.jsunit&#39;);
<a name="line21"></a>goog.require(&#39;goog.userAgent&#39;);
<a name="line22"></a>goog.require(&#39;goog.userAgent.product&#39;);
<a name="line23"></a>
<a name="line24"></a>var expectedFailures;
<a name="line25"></a>
<a name="line26"></a>function setUpPage() {
<a name="line27"></a>  expectedFailures = new goog.testing.ExpectedFailures();
<a name="line28"></a>}
<a name="line29"></a>
<a name="line30"></a>function tearDown() {
<a name="line31"></a>  expectedFailures.handleTearDown();
<a name="line32"></a>}
<a name="line33"></a>
<a name="line34"></a>function testError() {
<a name="line35"></a>  function xxxxx() {
<a name="line36"></a>    yyyyy();
<a name="line37"></a>  }
<a name="line38"></a>  function yyyyy() {
<a name="line39"></a>    zzzzz();
<a name="line40"></a>  }
<a name="line41"></a>  function zzzzz() {
<a name="line42"></a>    throw new goog.debug.Error(&#39;testing&#39;);
<a name="line43"></a>  }
<a name="line44"></a>
<a name="line45"></a>  var stack = null, message = null;
<a name="line46"></a>  try {
<a name="line47"></a>    xxxxx();
<a name="line48"></a>  } catch (e) {
<a name="line49"></a>    message = e.message;
<a name="line50"></a>    if (e.stack) {
<a name="line51"></a>      stack = e.stack.split(&#39;\n&#39;);
<a name="line52"></a>    }
<a name="line53"></a>  }
<a name="line54"></a>
<a name="line55"></a>  assertEquals(&#39;Message property should be set&#39;, &#39;testing&#39;, message);
<a name="line56"></a>
<a name="line57"></a>  expectedFailures.expectFailureFor(
<a name="line58"></a>      (goog.userAgent.IE &amp;&amp; !goog.userAgent.isVersionOrHigher(&#39;10&#39;)) ||
<a name="line59"></a>      goog.userAgent.product.SAFARI || (
<a name="line60"></a>          goog.userAgent.product.CHROME &amp;&amp;
<a name="line61"></a>          !goog.userAgent.isVersionOrHigher(532)),
<a name="line62"></a>      &#39;error.stack is not widely supported&#39;);
<a name="line63"></a>
<a name="line64"></a>  try {
<a name="line65"></a>    assertNotNull(stack);
<a name="line66"></a>
<a name="line67"></a>    if (goog.userAgent.product.FIREFOX &amp;&amp;
<a name="line68"></a>        goog.userAgent.isVersionOrHigher(&#39;2.0&#39;)) {
<a name="line69"></a>      // Firefox 4 and greater does not have the first line that says
<a name="line70"></a>      // &#39;Error&#39;. So we insert a dummy line to simplify the test.
<a name="line71"></a>      stack.splice(0, 0, &#39;Error&#39;);
<a name="line72"></a>    }
<a name="line73"></a>
<a name="line74"></a>    // If the stack trace came from a synthetic Error object created
<a name="line75"></a>    // inside the goog.debug.Error constructor, it will have an extra frame
<a name="line76"></a>    // at stack[1]. If it came from captureStackTrace or was attached
<a name="line77"></a>    // by IE when the error was caught, it will not.
<a name="line78"></a>    if (!Error.captureStackTrace &amp;&amp; !goog.userAgent.IE) {
<a name="line79"></a>      stack.splice(1, 1);  // Remove stack[1].
<a name="line80"></a>    }
<a name="line81"></a>
<a name="line82"></a>    assertContains(
<a name="line83"></a>        &#39;1st line of stack should have &quot;Error&quot;&#39;, &#39;Error&#39;, stack[0]);
<a name="line84"></a>    assertContains(
<a name="line85"></a>        &#39;2nd line of stack should have &quot;zzzzz&quot;&#39;, &#39;zzzzz&#39;, stack[1]);
<a name="line86"></a>    assertContains(
<a name="line87"></a>        &#39;3rd line of stack should have &quot;yyyyy&quot;&#39;, &#39;yyyyy&#39;, stack[2]);
<a name="line88"></a>    assertContains(
<a name="line89"></a>        &#39;4th line of stack should have &quot;xxxxx&quot;&#39;, &#39;xxxxx&#39;, stack[3]);
<a name="line90"></a>  } catch (e) {
<a name="line91"></a>    expectedFailures.handleException(e);
<a name="line92"></a>  }
<a name="line93"></a>}
<a name="line94"></a>
<a name="line95"></a>function testInheriting() {
<a name="line96"></a>  function MyError() {
<a name="line97"></a>    goog.debug.Error.call(this);
<a name="line98"></a>  }
<a name="line99"></a>  goog.inherits(MyError, goog.debug.Error);
<a name="line100"></a>  MyError.prototype.message = &#39;My custom error&#39;;
<a name="line101"></a>
<a name="line102"></a>  var message = null;
<a name="line103"></a>  try {
<a name="line104"></a>    throw new MyError();
<a name="line105"></a>  } catch (e) {
<a name="line106"></a>    message = e.message;
<a name="line107"></a>  }
<a name="line108"></a>  assertEquals(&#39;My custom error&#39;, message);
<a name="line109"></a>}
</pre>


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